package com.surekam.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;

public class CpuProcessorId {

	public static void main(String[] args) throws IOException {
		CpuProcessorId pid = new CpuProcessorId();
		pid.getProcessorId();
		String processorIdByScript = pid.getProcessorIdByScript();
		System.out.println(processorIdByScript);
		
	}

	public void getProcessorId() throws IOException {
		long start = System.currentTimeMillis();
		Process process = Runtime.getRuntime().exec(new String[] { "wmic", "cpu", "get", "ProcessorId" });
		process.getOutputStream().close();
		Scanner sc = new Scanner(process.getInputStream());
		String property = sc.next();
		String serial = sc.next();
		System.out.println(property + ": " + serial);

		System.out.println("time:" + (System.currentTimeMillis() - start));
	}

	public String getProcessorIdByScript() {
		String result = "";

		try {
			File file = File.createTempFile("tmp", ".vbs");
			file.deleteOnExit();
			FileWriter fw = new java.io.FileWriter(file);

			String vbs = "On Error Resume Next \r\n\r\n" + "strComputer = \".\"  \r\n"
					+ "Set objWMIService = GetObject(\"winmgmts:\" _ \r\n"
					+ "    & \"{impersonationLevel=impersonate}!\\\\\" & strComputer & \"\\root\\cimv2\") \r\n"
					+ "Set colItems = objWMIService.ExecQuery(\"Select * from Win32_Processor\")  \r\n "
					+ "For Each objItem in colItems\r\n " + "    Wscript.Echo objItem.ProcessorId  \r\n "
					+ "    exit for  ' do the first cpu only! \r\n" + "Next                    ";

			fw.write(vbs);
			fw.close();
			Process p = Runtime.getRuntime().exec("cscript //NoLogo " + file.getPath());
			BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
			String line;
			while ((line = input.readLine()) != null) {
				result += line;
			}
			input.close();
			file.delete();
		} catch (Exception e) {
			e.fillInStackTrace();
		}
		if (result.trim().length() < 1 || result == null) {
			return null;
		} else {
			return result.trim();
		}
	}
}
